If you really are a disciple of Christ then you should be able to cast out devils and heal the sick.
When you do what a disciple is supposed to do, people are supposed to give something back to the disciple so the disciple can eat.
Note: If you do NOT get healed or the devil is NOT cast out, don’t give the person anything. Do not give anything before the release has taken place.
8 Heal the sick, cleanse the lepers, raise the dead, cast out devils: freely ye have received, freely give.
9 Provide neither gold, nor silver, nor brass in your purses,
10 Nor scrip for your journey, neither two coats, neither shoes, nor yet staves: for the workman is worthy of his meat.